having trouble making water in 2.5

back in 2.49 i learned how to make water (only been doing blender for a month now so go easy on me)

but when i use 2.5 i cant figure out how to make the water transparent like the last

how do i make the water as close to the last one as possible? (also if this is in the wrong area im sorry… i figured water would fall under the rendering section)

Hi,

You need to reduce the Alpha.

it worked… but is still does not look like the first image
http://i49.tinypic.com/2jcv8xu.png
i matched the alpha but it still doesnt look like the water i made last